PT-2026-58059 · Os4Ed · Opensis Classic+1

Daniel Celis · Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-11944

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

openSIS Classic 9.3 contains an authenticated path traversal vulnerability in the legacy messaging sent-mail attachment download functionality that allows an authenticated attacker to read arbitrary files on the server via crafted path traversal sequences.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-11944

Affected Products

Opensis Classic

Opensis

References · 3

• 🔥 https://fluidattacks.com/es/advisories/toto · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-11944 · Security Note
• https://github.com/OS4ED/openSIS-Classic · Note